10 A COMPARISON OF THE FOSSIL IXSECTS, ETC. 



The Blattina are on the whole scarcer in the Solenhofen 

 strata tlian in the English ; and besides, I have not exa- 

 mined the specimens so carefully as to be able to express an 

 opinion on them here. To this group belong Vv^estwood's 

 figures, 19, 20, 22, 23, 24, 26, on PI. 15; PI. 17, figs. 10, 

 13; PI. 18, figs. 22, 25, 28, 34, 35, 43, and in Brodie's 

 work, PI. 5, figs. 1, 2, 3, 4, 14, 16, 20; Pi. 8, figs. 12, 13. 



With reference to two wings which Westwood deemed 

 Orthopterous (PI. 18, fig. 24 and 42, Sialium sipylus) I do 

 not feel quite certain. They have so many points of resem- 

 blance to Hemerohius, especially to Nymplies, that it appears 

 to me not improbable they may belong to the Neuroptera. 

 A third specimen (PI. 17, fig. 16), Raphium J3rephos, 

 diff*ers too essentially in its neuration from the Maphidia to 

 be I'eferi'ed there without hesitation. In the Solenhofen 

 strata the Hemiptera ate represented by gigantic Pygo- 

 lanipos and other species ; but I am unable here or in the 

 Coleoptera, Hymenoptera and Diptera to make a com- 

 parison with the English strata. 



The principal result of my present investigations has been 

 that the Fauna of the English secondary strata seems allied 

 to the Bavarian in many respects, and that some species are 

 so very similar that a very close comparison is necessary to 

 establish their distinctness. That comparison must be made 

 by English naturalists, as I have had no opportunity of see- 

 ing the fossil insects of England. 



